SpectraVU
Key Features
- Dual-channel VU display focuses on left and right programme level without adding processing to the signal path.
- Measurement core is shared with GBCAudio's paid Spectra meter for consistent level behaviour in a smaller utility.
- Germanium-diode rectifier modelling gives the detector a more hardware-like response than a plain RMS average.
- Default 300 ms rise time follows the IEC-style VU ballistic while allowing quicker movement when needed.
- Adjustable 0 VU reference defaults to -18 dBFS for common digital gain-staging workflows.
- Right-click settings panel keeps reference, rise time, and needle blur available while the meter continues running.
- Standalone, VST3, AU, CLAP, and AAX support cover common macOS and Windows production setups.
Description
SpectraVU is a focused VU meter from GBCAudio, split out from the developer's paid Spectra loudness and analysis meter. It gives each stereo channel a classic needle display while leaving the audio path untouched, so it works as a gain-staging and level-reference insert rather than a processor.
The meter is built around the same measurement core as Spectra. Its default movement follows the IEC-style 300 ms rise to 99 percent deflection, and the detector models a germanium-diode rectifier instead of relying on a plain RMS average.
That makes SpectraVU useful when you want a familiar analogue-style read on programme level without opening a full broadcast meter. The 0 VU reference defaults to -18 dBFS and can be changed from the right-click settings panel, along with rise time and needle blur.
The download flow stays on GBCAudio's own product page, where the plugin is marked as a no-cost product with no licence, no account, no trial clock, and no expiry. The page also notes that installers are emailed after adding the product to the cart, so SSA should route users externally instead of mirroring any installer file.
Frequently Asked Questions
Does SpectraVU change the sound?
No. GBCAudio says audio passes through untouched and the signal is tapped only for metering, so SpectraVU should be used as a visual level reference rather than a tone, gain, or dynamics processor.
How is SpectraVU different from a basic RMS meter?
SpectraVU uses a model of a germanium-diode rectifier and a VU-style ballistic instead of displaying a simple RMS average. That design is intended to make programme material move more like a real VU meter needle.
Can the 0 VU reference be changed?
Yes. The reference is adjustable from the right-click settings panel and defaults to -18 dBFS, with the detector calibrated so a sine wave at the selected reference reads 0 VU.
Why does the download route stay external?
GBCAudio delivers the installers from its own cart flow and says they are emailed after the product is added. For a new SSA product, that means the correct route is the official product page rather than a mirrored installer.
